10g checksum calculation

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 . based on dp_statistics, just like eth_statistics.

 .Instantiated dp_statistics in eth_statistics.

Pass on g_sim via aduh_dd to lvdsh_dd_phs4 to be able to shorten the locked timeout in lvdsh_dd_phs4_align.

 . This is now a standalone component mms_common_pulse_delay.

 and no register is added.

-Added generics for counter width and optional output registers;
-Verified OK using tb_ppsh and tb_mms_ppsh.

 . No added/modified PPSH functionality yet.

Made tb_aduh_mean_sum and tb_aduh_power_sum self checking and added them to the ADUH regression test.

-Fixed bug in checking stage of eth_statistics.

-Added tb_end output;
-Removed clk input;
-Added statistics check @ tb_end;
-Added timeout.

 . Added SOP/EOP support to sim_transceiver_serializer and 
   sim_transceiver_deserializer.
-Instantiated tech_tse in eth_statistics.

 . Author,Purpose,Description
 . Empty architecture